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Finding the Fourth Proportional to 168,388.20, 252,582.30 and 162,483.30

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Solution

The fourth proportional to 168,388.20, 252,582.30 and 162,483.30 is: 243,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,388.20 : 252,582.30 = 162,483.30 : x
  2. Step 2: Convert to fraction form
    168,388.20/252,582.30 = 162,483.30/x
  3. Step 3: Cross multiply
    168,388.20x = 252,582.30 × 162,483.30
  4. Step 4: Simplify right side
    168,388.20x = 41,040,405,625.59
  5. Step 5: Solve for x
    x = 41,040,405,625.59/168,388.20
  6. Step 6: Final answer
    x = 243,724.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.